Is there any reason I could not use my .45 Colt dies to load the .45 auto?
If so, are there any "tricks" to doing this? Like maybe having to expand the case a little more . . .
I have never tried it but that does not mean it wouldn't work. Off the top of my head I think seating could work but resizing would not for obvious reasons. You probably would not be able to taper crimp using the .45LC die either.